* {
  padding: 0;
  margin: 0;
}
.none {
  display: none;
  width: 100%;
}
.none div:nth-of-type(1) {
  height: 20px;
  margin: 0px auto 10px;
}
.none div:nth-of-type(1) input {
  width: 100%;
  height: 100%;
  outline: none;
  -webkit-appearance: none;
  border-radius: 0;
  border: 0;
  background: #fff;
  border: 1px solid #ddd;
}
.click {
  width: 174px;
  height: 32px;
  line-height: 32px;
}
a {
  width: 100%;
}
.a ul {
  height: 160px;
  position: relative;
  overflow-x: hidden;
  overflow-y: auto;
}
.a ul li {
  padding: 10px 6px;
  line-height: 20px;
  cursor: pointer;
}
.a ul li:hover {
  background: #1e90ff;
  color: #fff;
}
.center_xf {
  color: #a7a7a7;
  width: 174px;
  margin: 0 auto;
  border-radius: 5px;
  border: 1px solid #ddd;
  padding: 0 10px 0 10px;
}
